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/* Copyright (C) 1997, 1998, 1999, 2002, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Daniel Jacobowitz <dan@debian.org>, 1999.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
/* Massivly hacked up for uClibc by Erik Andersen */
/* Extracted from ../common/mmap64.c by Alexandre Oliva <aoliva@redhat.com>
We don't want to use the old mmap interface. */
#include <features.h>
#include <errno.h>
#include <unistd.h>
#include <sys/syscall.h>
#include <sys/mman.h>
libc_hidden_proto(mmap)
#define __NR___syscall_mmap2 __NR_mmap2
static __inline__ _syscall6(__ptr_t, __syscall_mmap2, __ptr_t, addr,
size_t, len, int, prot, int, flags, int, fd, off_t, offset)
/* This is always 12, even on architectures where PAGE_SHIFT != 12. */
# ifndef MMAP2_PAGE_SHIFT
# define MMAP2_PAGE_SHIFT 12
# endif
__ptr_t mmap(__ptr_t addr, size_t len, int prot, int flags, int fd, __off_t offset)
{
if (offset & ((1 << MMAP2_PAGE_SHIFT) - 1)) {
__set_errno (EINVAL);
return MAP_FAILED;
}
return(__syscall_mmap2(addr, len, prot, flags, fd, (off_t) (offset >> MMAP2_PAGE_SHIFT)));
}
libc_hidden_def(mmap)
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